摘要
介绍了一套可控超导储能(SMES)实验装置。该装置可作为可控超导储能在电力系统中应用的实验研究平台。它包括一个储能量为20kJ的低温超导磁体和一个15kW的基于绝缘栅双极晶体管(IGBT)的电流型变流装置。为了减少冷却系统的漏热,超导磁体通过Bi-2223带材制成的高温超导电流引线同变流装置连接。变流装置采用双桥型拓扑和PWM开关策略以减少其输出电流中的谐波成分。为了可以执行高速和高精度的控制算法,变流装置的控制系统采用双DSP的控制器。文中还介绍了该实验装置各部分的结构和工作原理,并给出了初步的实验结果。
A grid model of superconducting magnetic energy storage(SMES) system was developed for studying utility and customer power applications. The system consists of a 20 kJ NbTi magnet and a 15 kW IGBT current source converter. To reduce the heat leakage, a couple of HTS current leads were designed and fabricated which are composed of Bi-2223 tapes. The double bridge current source topology and PWM strategy were chosen to improve the Total Harmonic Distortion (THD) of its output current. In the controller of the system, two fast DSPs (TMS320C32) are used to implement the control algorithms with a high accuracy and a high speed of response. This paper describes the structure and the running principle of this system, the preliminary experiment results are also presented.
出处
《电力系统自动化》
EI
CSCD
北大核心
2004年第4期88-91,共4页
Automation of Electric Power Systems
基金
国家自然科学基金资助项目(50137020)
关键词
可控超导储能
超导磁体
电流型变流器
DSP控制器
superconducting magnetic energy storage (SMES)
superconducting magnet
current source converter
DSP controller
